[Overview][Constants][Types][Classes][Procedures and functions][Variables][Index] Reference for unit 'Variants' (#rtl)

VarIsNull

Check if a variant is null

Declaration

Source position: variants.pp line 76

function VarIsNull(

  const V: Variant

):Boolean;

Description

VarIsNull returns True if the type of the variant V is varNull. No dereferencing is done.

See also

VarIsEmpty

  

Check if the variant is empty

VarType

  

Return the type of a variant.

VarIsNumeric

  

Check if the variant is a numerical value

VarIsStr

  

Check if the variant is a string


Documentation generated on: May 14 2021